public void test_has_class_value_with_limited_training_set()
{
TestingRow5[] rows = new[] {
new TestingRow5 {
CLASS = 1.0, ATT_1 = "1"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "2"
},
new TestingRow5 {
CLASS = 22.0, ATT_1 = "3"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "4"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "5"
},
new TestingRow5 {
CLASS = 11.0, ATT_1 = "2"
}
};
InstancesBuilder <TestingRow5> builder = new InstancesBuilder <TestingRow5>(rows, 0, 3);
weka.core.Instances instances = builder.Build();
Assert.AreEqual(3, instances.numAttributes());
Assert.AreEqual(6, instances.numInstances());
CollectionAssert.AreEqual(new[] { "1", "2", "3", "4", "5", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new[] { "0", "1", "0", "0", "0", "1" }, instances.GetAttrStrings(2));
}
public void flatten_attribute()
{
FlattenClass[] rows = new[] {
new FlattenClass {
CLASS = 0, Att1 = new [] { 1, 2, 3, 4, 5 }
},
new FlattenClass {
CLASS = 1, Att1 = new [] { 6, 7, 8, 9, 10 }
}
};
InstancesBuilder <FlattenClass> builder = new InstancesBuilder <FlattenClass>(rows, 0);
weka.core.Instances instances = builder.Build();
Assert.AreEqual(2, instances.numInstances());
Assert.AreEqual(6, instances.numAttributes());
CollectionAssert.AreEqual(new[] { "1", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new[] { "1.2", "2.2" }, instances.GetAttrStrings(2));
}
public void test_ignore_attributes()
{
TestingRow6[] rows = new[] {
new TestingRow6 {
CLASS = 1.0, ATT_1 = "1", ATT_2 = "1.1", ATT_3 = "1.2"
},
new TestingRow6 {
CLASS = 2.0, ATT_1 = "2", ATT_2 = "2.1", ATT_3 = "2.2"
}
};
InstancesBuilder <TestingRow6> builder = new InstancesBuilder <TestingRow6>(rows, 0);
weka.core.Instances instances = builder.Build();
Assert.AreEqual(3, instances.numAttributes()); // 1 is ignored
Assert.AreEqual(2, instances.numInstances());
CollectionAssert.AreEqual(new[] { "1", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new[] { "1.2", "2.2" }, instances.GetAttrStrings(2));
}
